What is the function of the diode beeping gear of a multimeter?
The purpose of the diode beeping gear of the multimeter is to detect whether the line is open or not, and to detect the diode Hall resistance.
First, detect whether the line from the controller to the terminal line is open. For example, to detect the line of the turnbuckle: unlocked, the whole car is energized, plus electric door car does not go, change the turnbuckle also can not. Red pen connected to the controller handle line, the other section connected to the handle terminal, so as to detect the red, black, blue whether the road, which beeping gear does not call is the line is broken.
Secondly, detect the rotary handle, motor Hall is damaged. The red pen connects to the negative signal line, the black pen connects to the green signal of the turner, 500 to 600 means that the turner is normal. Motor Hall for the red connection to the negative signal line, black pen connection in turn connected to the green line, yellow line, blue line, there are 500 to 600 stable value that Hall normal. (The value of 500-600 indicates a positive 0.5-0.6 voltage change)
Third, detect the controller phase line good or bad. Red connect the controller total negative line, black once connected to the yellow, blue and green three phase line, the measured value is the same that the phase line is normal.
Fourth, detect the LED bulb good or bad. Black pen connected to the negative pole, red pen connected to the positive pole, the light is normal.
